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A gas has a volume of 3 L at a temperature of 78 c.Find the volume of the gas at standard temperature

Respuesta :

Answer:

The answer to your question is  V2 = 2.5 l

Explanation:

Data

Volume 1 = V1 = 3 l

Temperature 1 = T1 = 78°C

Volume 2 = V2 = ?

Temperature 2 = T2 = 20°C    Standard temperature = 20°C

Process

To solve this problem use Charles' law

            V1/T1 = V2/T2

-Solve for V2

            V2 = V1T2 / T1

1.- Convert the temperature to °K

T1 = 78 + 273 = 352°K

T2 = 20 + 273 = 293°K

2.- Substitution

           V2 = (3 x 293) / 352

3.- Simplification

           V2 = 879/352

4.- Result

           V2 = 2.5 l

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